If you use Rotation Tracks in your research, please cite the above paper and also cite the papers for each of the following steps.

Untar the Level-II data and place it somewhere. Let’s call this directory RAWDIR

Get terrain netcdf data for your radar. You can get terrain files for US radars from ftp://ftp.nssl.noaa.gov/users/lakshman/conus_radar_blockage.tgz. Untar this, and let’s call this directory TERRAIN

Decide where you want your output products to go. Let’s call this DATADIR.

Define a variable RADAR to hold your radar identifier (e.g. KBMX)

Run ldm2netcdf to convert the Level-II data into NetCDF

QC the radar reflectivity data. Note that I am assuming that you have don’t have dualpol (if you do have dualpol, you should w2qcnndp) and that you do have super-resolution (if you have 1km resolution, change -R accordingly)

Dealias the velocity data

Compute Azimuthal Shear

Run w2merger to put the data on a LatLonGrid

Run w2accumulator with QC to create the rotation tracks

Here’s a script that will carry out the entire process. Edit as needed.